Effect of mechanical loading history on fatigue crack growth of non-crystallizing rubber
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in: Engineering Fracture Mechanics, Jahrgang 257.2021, Nr. November, 108010, 11.2021.
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
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TY - JOUR
T1 - Effect of mechanical loading history on fatigue crack growth of non-crystallizing rubber
AU - Schieppati, Jacopo
AU - Schrittesser, Bernd
AU - Wondracek, Alfred
AU - Robin, Stefan
AU - Holzner, Armin
AU - Pinter, Gerald
N1 - Rubbers possess unique mechanical properties that make them indispensable for technological products such as seals and tires, which are normally subjected to quasi-static loading conditions which superimposes cyclic loads; their failure is mainly related to fatigue. In this study the focus is on the effect on fatigue of parameters connected to the mechanical history. Fatigue crack growth of a non-crystallizing rubber was investigated using cyclically loaded pure shear specimens considering different loading conditions. In a first step, the geometry of the specimens, in terms of width to height ratios and notch length, was considered to avoid specimen-influences on the results. Subsequently, several tests were implemented using both force and displacement control with different loading histories. Finally, the effect on the fatigue crack growth of parameters such as waveform, frequency and load ratio was investigated. In general, no significant influence of load or displacement control was found. Among the loading parameters, waveform and load ratio seem not to have a marked effect on the fatigue behavior of the material. In contrast, decreasing values of frequency were found to increase the crack growth rate.
PY - 2021/11
Y1 - 2021/11
N2 - Rubbers possess unique mechanical properties that make them indispensable for technological products such as seals and tires, which are normally subjected to quasi-static loading conditions which superimposes cyclic loads; their failure is mainly related to fatigue. In this study the focus is on the effect on fatigue of parameters connected to the mechanical history. Fatigue crack growth of a non-crystallizing rubber was investigated using cyclically loaded pure shear specimens considering different loading conditions. In a first step, the geometry of the specimens, in terms of width to height ratios and notch length, was considered to avoid specimen-influences on the results. Subsequently, several tests were implemented using both force and displacement control with different loading histories. Finally, the effect on the fatigue crack growth of parameters such as waveform, frequency and load ratio was investigated. In general, no significant influence of load or displacement control was found. Among the loading parameters, waveform and load ratio seem not to have a marked effect on the fatigue behavior of the material. In contrast, decreasing values of frequency were found to increase the crack growth rate.
AB - Rubbers possess unique mechanical properties that make them indispensable for technological products such as seals and tires, which are normally subjected to quasi-static loading conditions which superimposes cyclic loads; their failure is mainly related to fatigue. In this study the focus is on the effect on fatigue of parameters connected to the mechanical history. Fatigue crack growth of a non-crystallizing rubber was investigated using cyclically loaded pure shear specimens considering different loading conditions. In a first step, the geometry of the specimens, in terms of width to height ratios and notch length, was considered to avoid specimen-influences on the results. Subsequently, several tests were implemented using both force and displacement control with different loading histories. Finally, the effect on the fatigue crack growth of parameters such as waveform, frequency and load ratio was investigated. In general, no significant influence of load or displacement control was found. Among the loading parameters, waveform and load ratio seem not to have a marked effect on the fatigue behavior of the material. In contrast, decreasing values of frequency were found to increase the crack growth rate.
KW - Fatigue crack growth
KW - Frequency
KW - Hysteresis
KW - Load ratio
KW - Rubber
UR - http://www.scopus.com/inward/record.url?scp=85116035284&partnerID=8YFLogxK
U2 - 10.1016/j.engfracmech.2021.108010
DO - 10.1016/j.engfracmech.2021.108010
M3 - Article
AN - SCOPUS:85116035284
VL - 257.2021
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
SN - 0013-7944
IS - November
M1 - 108010
ER -